This is repository contains an XSLT file that can be used to generate C# code from an EDMX file. Really useful if you want to move away from using an EDMX.

I've used this to move a project that had 260 tables away from EDMX to CodeFirst. IT will decorate teh relevant attributes againset the properties, such as Key, ForeignKey, MaxLength etc

1. take a copy of your EDMX file and change the file extension to XML
2. Add a reference to the XSLT file as a stylsheet in the XML file <?xml-stylesheet type="text/xsl" href="XSLTFile1.xslt" ?>
3. Edit the XSLT to use the namespace you'd like to appear in your classes
4. Use a tool such as Oxygen XML to transform the XML and create individual files for each EntityType.
5. Thats it

1. The XSLT assumes that your table names match your EntityTypes
2. Currently it doesn't add the Order number on mulitple keys (I wish I had done it, as there were more multiple key tables than I remembered in the project I converted.
3. Its by no means perfect, but it generated the files in no time at all and it took me 1/2 day to switch the main solution over to using it.

1. The connection string will need to be a standard connection and the providerName will need to be System.Data.SqlClient
2. Any properties you've written in other partial classes for these entities will need to be marked with the [NotMapped] attribute

I hope it helps

Paul